Aluminum Radiator for Mercury Cougar (1967-1970) 4.7L 5.0L 5.8L

High-Efficiency 3-Row Performance Aluminum Radiator for 1967-1970 Mercury Cougar

Thermal Management Upgrade: Engineered to replace failure-prone OEM brass-copper radiators with an all-aluminum 3-row core designed to maximize heat rejection and maintain stable operating temperatures under high thermal loads.

The Stock Cougar Heat Soak and Solder Fatigue Weakness

Factory 1967-1970 Mercury Cougar cooling assemblies rely on stamped copper fins joined to brass end tanks via lead-based solder. Decades of engine thermal cycles degrade these solder seams, leading to core separation, hairline pressure leaks, and internal tube scaling. Restricted coolant velocity directly causes localized overheating in the cylinder heads of classic Ford small blocks, specifically during heavy idle or prolonged acceleration in warm ambient conditions.

The Engineering Solution

This direct-fit replacement is manufactured from high-grade 3003 aluminum featuring a furnace-brazed 3-row tube-and-fin core. Precision TIG-welded tanks eliminate the leak risks associated with mechanical crimps, gaskets, and lead solder. Featuring wide, low-resistance fluid passages, the core optimizes laminar coolant flow and broadens external heat-dissipation surface area. The high-conductivity all-aluminum construction dramatically outperforms deteriorating stock cores while significantly reducing weight over the front axle.

Technical Specifications

Compatibility

• 1967 Mercury Cougar Base & XR-7 (4.7L 289ci Windsor V8)
• 1968 Mercury Cougar Base & XR-7 (4.7L 289ci / 5.0L 302ci Windsor V8)
• 1969 Mercury Cougar Base & XR-7 (5.0L 302ci / 5.8L 351ci Windsor/Cleveland V8)
• 1970 Mercury Cougar Base & XR-7 (5.0L 302ci / 5.8L 351ci Windsor/Cleveland V8)

The Mercury Muscle Standard

Engineered to handle high-output classic American V8 horsepower, this cooling unit provides continuous heat rejection and structural durability under sustained high-load street and track conditions.